Other, less common melatonin side effects might include abdominal discomfort, mild anxiety, irritability, confusion and short-lasting feelings of depression. In addition, melatonin supplements can interact with various medications, including: Blood-thinning medications (anticoagulants)
The rib cage also contains muscles with an expiratory action. These are the internal intercostal muscles, which slope backward; contraction causes the ribs to move downward and inward, similar to the lowering of a bucket handle.Both internal and external intercostal muscles are also involved in flexing and twisting the trunk.Read more about Breathe Strong, Perform Better.ntercostal muscle contraction also brings about stiffening of the rib cage during lifting, pushing, and pulling movements, which makes the intercostal muscles an important contributor to these movements.
Strain on the Intercostal Muscles. The intercostal muscles are just one of the many groups of muscles which connect the ribs. These particular muscles expand and contract as we breathe; it is very noticeable when these muscles are inflamed or infected as you will feel a pain under right rib cage.